Threshold levels

Question 1

What is the threshold level

Answer 1

the electrical stimulus has to be a certain value before a neuron fires

Question 2

Once the threshold level is reached, what happens
-does increasing the stimuli produce an increased response

Answer 2

nerve impulses are total (going to happen)
-no, its all or none.

Question 3

Intensity Detection
-What 2 things can happen if the stimulus is increased

Answer 3

1. more neurons are stimulated and brain interprets the higher number of neurons as increased intensity
2. increased frequences of action potentials